In case Ukraine holds missile-firing drills near Crimea, Russia will retaliate with shooting down missiles and wage a blow on the rocket launchers, Russia's Ministry of Defence said 26 November in a letter to the military attaché at the Ukrainian Embassy in Moscow, the publication ZN.UA wrote with a reference to sources in the Ministry of Defence of Ukraine.
On Wednesday, November 30, it became known that Russia has deployed in Crimea air defense missile system VM-C300. The volunteers of InformNapalm intelligence community have identified the weaponry as anti-aircraft missile system S-300VM Antey-2500, an air defence system with the ability to counter ballistic missiles of small and medium-range (up to 2,500 km).
On 24 November, Ukraine issued a NOTAM (aviation notice) to inform providers of aviation services of various states, airlines and crews about possible dangers of the use of the airspace during the above mentioned air firing drills on 1-2 December in the airspace of Crimea in connection with the planned firing. Russian Defense Ministry stated protests.